I'm on it and found out today that for the last two months they have been charging me for an internet bundle i've not been using!
Check your statements that you're not being made to pay it without knowing!
Apparently they text me informing of this but I have no idea!
The first 2 months you got it free but after that you have to pay £5 a month for it, but it's up to you to cancel it! Even-though you didn't request it... imo it's a wee bit of a scam! :(